The Refugee Act of 1980 defines the U.S. laws relating to refugee immigrants. Under the Refugee Act, the term "refugee" refers to aliens with a fear of persecution upon returning to their homelands, stemming from their religion, race, nationality, membership in certain social groups, or political opinions. Anyone who delivers a missing American POW or MIA soldier receives refugee status from the United States.

The United States, however, denies refugee status to any alien who actively persecuted individuals of a certain race, political opinion, religion, nationality, or members of a certain social group. As a matter of public policy, the government also typically refuses refugee applicants previously convicted of murderer. For refugees who have "firmly resettled" in another country, the United States will deny a request for refugee admission. The government considers refugees "firmly resettled" if the refugees have received an offer of citizenship, permanent residency, or some other permanent status from a foreign country.

Under international law, the Geneva Convention, or the laws of the United States, foreign citizens who have become disillusioned with their homeland cannot take temporary refuge within the United States. The Refugee Act of 1980 specifically leaves out temporary refuge as a form of refugee status that the U.S. government will recognize.

To qualify for refugee status under the persecution provision, the refugee applicant must prove actual fear. A proof of actual fear requires meeting both a subjective and an objective test. The subjective test requires that the refugee actually have an honest and genuine fear of being persecuted for some immutable trait, such as religion, race, and nationality. Seekers of asylum must show a fear that membership in a social or political group has caused past persecution or has caused a well-founded fear that persecution will occur upon returning. The applicant meets the objective standard by showing credible and direct evidence that a reasonable possibility of persecution exists upon the applicant's return to the homeland.

The President retains the ultimate decision making authority when determining the number of refugees to allow into the country during a given year.